The VM dashboard loads in some ressources from an external which in my opinion doesnt make sense. Can you please fix this?? More than that, the ressources loaded are missing SSL which also seems wierd.

I fixed it now. The reason was that we still used simplepie as feed library, which throwed an SSL error. The same for Firefox btw, it is really interesting. Use the link directly with https on firefox and you will see that FF says the page is not secure, but chrome says it is secure. Chrome on the other hand just shows the sourcecode.

So curl reacts here like FF. The reason is, that the protocoll rss1.0 was not defined for SSL, so it stops. So I could not set the URL with SSL protocol. The new core uses now the standard feed library of joomla. So no more mixed content.